What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



hw_mapid — Returns a local virtual object ID of a remote document.


int hw_mapid(hw_link, server_id, object_id);
resource hw_link: Connection ID to Hyperwave server
int server_id: ID of the server on which the object resides
int object_id: Object ID of the object to map


Object ID on success; FALSE on failure


This function allows you to map the ID of a document on a remote Hyperwave server onto a local object ID, allowing you to access the object as though it existed on the local server. To do so you need to know the GOid (global object ID) of the remote object. The first part of an object's GOid is the server's IP address in hexadecimal; this should be passed to hw_mapid() as server_id ; the object ID of the requested object is passed as object_id .

Note that as of PHP 4.0.5, you need to hand-modify the source code of the file ext/hyperwave/hg_comm.c in the PHP source tree and recompile in order to use hw_mapid() . Instructions detailing the change are included in comments near the top of the file.


PHP 3 since 3.0.13, PHP 4 since 4.0b4


Example 512. Map a remote object to a local ID

if (($obj_id = hw_mapid($hw_link, $remote_server, $object_id)) === FALSE) {
    echo "Could not map remote object; reason: " . hw_errormsg($hw_link) . ".\n";
} else {
    echo "Remote object successfully mapped with object ID $obj_id.\n";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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